I would say you could expect a score of about 2300 to 2700 points depending how much you OC your cards in this benchmark. very similar score to GTX 480's in SLI.

The CPU temp seems a little high unless you are using a stock cooler. If you are then it's seems about normal (Maybe a tad high) The cards temps are just fine. That is normal to 80C on modern day video cards like you have. Especially from the top card in SLI Use fan control you could bring those temps down a bit on the cards.

Because the GTX 480 and the GTX 570 have very similar specs. The GTX 480 would've really been the GTX 570 to begin with, but when Nvidia was rushing Fermi to production Fermi wasn't ready. So they released a card that ran way to hot that had specs very close to the GTX 570 and called it the GTX 480. Later when Fermi matured they released the GTX 580 which was the original idea of how fermi (GTX480) would've been from release.

The reason Nvidia rushed was because they needed something to compete against the HD5870 from ATI

Kind of the same thing they are doing now with the GTX 680

The GTX 580/570/480 are for all intents and purposes pretty much the same chip... only some differences are clocks, Cores locked, memory and some other small differences

about overclocking is there a easy way to do it like just to overclock a small amount so it wont blow up on stock fans, what programes are used to overclock normally? not sure if i should oc the gfx cards as they are 80c on load already

Well to answer your question about if the GTX 680 will be better then a GTX 570 SLI set up.... the GTX 680 performance will be very comparable to the HD 7970 out currently. So in some instances I would say "Yes" It will be better than an GTX 570 SLI setup. But in most instances the answer will be "No". Although not by that much. I guess it all depends on what your goals with your cards.

As far as overclocking goes.... yes there are some good programs out there for overclocking... some of these are....

MSI Afterburner (Make sure you have the latest version even consider getting the latest Beta)
EVGA Precision
Nvidia Inspector

To name a few.... I found those the best for you basic overclocking and moderate overclocking. Before you get into high end overclocking I would do a lot of research first on how to overclock.

Better yet do your research first period.... you would hate to kill those expensive cards for no reason right?

Well to answer your question about if the GTX 680 will be better then a GTX 570 SLI set up.... the GTX 680 performance will be very comparable to the HD 7970 out currently. So in some instances I would say "Yes" It will be better than an GTX 570 SLI setup. But in most instances the answer will be "No". Although not by that much. I guess it all depends on what your goals with your cards.

As far as overclocking goes.... yes there are some good programs out there for overclocking... some of these are....

MSI Afterburner (Make sure you have the latest version even consider getting the latest Beta)
EVGA Precision
Nvidia Inspector

To name a few.... I found those the best for you basic overclocking and moderate overclocking. Before you get into high end overclocking I would do a lot of research first on how to overclock.

Better yet do your research first period.... you would hate to kill those expensive cards for no reason right?

Well honestly if you can get those cards to work together in SLI..... I am impressed. SLI is really picky compared to Crossfire. Crossfire will allow you to use cards like that and keep each clock setting. SLI.... usually won't work like that..... it will cause issues. If not issues it will down clock one of the cards for sure to match the other. If they are both different styles of cards that means they are probably different PCB's too. Which means flashing the BIOS to match is out of the question.

In terms of performance for the GTX 680. Remember the performance gains might not be there all that much. They will be there only by a small amount and in some cases and the GTX 680 will loose in other cases. But in a lot of cases they will be pretty close to even too. But the GTX 680 won't have a microstutter problem (Because it is a single chip) it won't be anywhere near as power hungry!!!! And will play most any game maxed out.... Minus some exceptions.
Do some research on the pros and cons of SLI GTX 570 setup. Also do some research on a single chip setup. See which one will fit your needs better.

Me personally I own a Duel HD7970 Crossfire setup. I don't notice any microstutter and it works for me just fine. But it is what worked for me.

yeah the 2 cards run at diffclocks not by much 50hz , i over clocked them using evga one, upped the 2nd card 50hz to match the other one, seems stable and about 5-10 fps more. on that bench mark, tried 100mz but it locked up. temps are up by about 8c

they are the same make card, one is called gainward Phantom the other was just called gainward. I will wait and see how the 680 is when it is out, when ever that is

I was going to try and over clock the cpu a bit but i cant get into bios for the life of me, since i had this all new upgrade, the keyboard says not detected until it gets into windows so pressing Del when it says to press it to get into bios is not possible, no idea why it is doing this.

yeah the 2 cards run at diffclocks not by much 50hz , i over clocked them using evga one, upped the 2nd card 50hz to match the other one, seems stable and about 5-10 fps more. on that bench mark, tried 100mz but it locked up. temps are up by about 8c

they are the same make card, one is called gainward Phantom the other was just called gainward. I will wait and see how the 680 is when it is out, when ever that is

Well I can actually answer that for you right now. They will be releasing this month with large quantities in April. Just trust me when I say this.

That is good that the GTX 570 work together.... in terms of controlling the fan enable fan control and turn the fans up. Try using MSI afterburner though. It's a much better program. So is Nvidia inspector as far as I am concerned. You will get rid of the 8C degree difference. Plus remember cooler cards are happier cards especially with overclocking.

Well I can actually answer that for you right now. They will be releasing this month with large quantities in April. Just trust me when I say this.

That is good that the GTX 570 work together.... in terms of controlling the fan enable fan control and turn the fans up. Try using MSI afterburner though. It's a much better program. So is Nvidia inspector as far as I am concerned. You will get rid of the 8C degree difference. Plus remember cooler cards are happier cards especially with overclocking.